2008-12-10 03:33:25 How to map a Flag pin ( PF ) interrupt to PF_Interrupt B

Sada M (INDIA)

Message: 66587

Hi,

How to map a Flag pin ( PF ) interrupt to PF_Interrupt B ?

Is there any option in Make menuconfig ?

Regards,

Sada.

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2008-12-10 03:50:48 Re: How to map a Flag pin ( PF ) interrupt to PF_Interrupt B

Mike Frysinger (UNITED STATES)

Message: 66588

there is no way currently. the Blackfin code all uses PF Interrupt A.

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2008-12-10 04:26:59 Re: How to map a Flag pin ( PF ) interrupt to PF_Interrupt B

Sada M (INDIA)

Message: 66599

Hi Frysinger,

Thanks for the inputs.

We have issue in our system due to this because, in current system we have Ethernet,WLAN & IR interrupts mapped thru PF pins and IR is actually very critical. Due to above limitaion the IR interrupt service latency is more than expected and we have issues with key detection.

Is there any other way to do it ?

Also Is there any possibilities to enable pre-emptive in ISR ? ( Normally which we enable by pushing RETI into Stack Pointer ).

Regards,

Sada.

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2008-12-10 04:30:20 Re: How to map a Flag pin ( PF ) interrupt to PF_Interrupt B

Michael Hennerich (GERMANY)

Message: 66600

Connect the IR Receiver to a timer - and not to GPIOs

See some examples here - this works pretty reliable ...

http://docs.blackfin.uclinux.org/doku.php?id=hw:cards:ir-trx&s[]=lirc

http://docs.blackfin.uclinux.org/doku.php?id=uclinux-dist:lirc